Two-phase-flow muffler in a rotating shaft

Details Two-phase-flow muffler in a rotating shaft Two-phase-flow muffler in a rotating shaft

1995-10-30

1996-10-01

Dang, Khanh

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181237, 181272, F01N 712

Patent

active

055612768

ABSTRACT:
A muffler is described for use in connection with an exhaust passage in a ongated shaft rotating about a longitudinal axis. The shaft exhausts exhaust material generated by an internal or external combustion engine, having both a gaseous and a liquid material. The muffler includes a series of partitions situated transverse to the longitudinal axis of the shaft, each partition defining a central aperture to facilitate passage of gaseous material from an input end of the exhaust shaft to an output end of the exhaust shaft, and at least one exterior aperture proximate the sidewall of the exhaust passage to facilitate passage of liquid material from the input end to the output end. The central and exterior passages tend to separate the gaseous and liquid material in the exhaust. The series of partitions define chambers which attenuates the sound energy in the exhaust. A check valve may be provided at the exhaust's output end to reduce back flow of fluid from the exterior of the exhaust back into the exhaust shaft.

REFERENCES:
patent: 2360429 (1944-10-01), Leadbetter
patent: 3448824 (1969-06-01), Conard, Jr.
patent: 4019456 (1977-04-01), Harbert
patent: 4601666 (1986-06-01), Wood, Jr.
patent: 5442148 (1995-08-01), Hensler

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